Golden Bee on Don Juan Rose
This bee seemed to be coming out of a pupae ? state since it couldn’t fly at the time these pictures were taken. I live in Tucson, AZ. and I also have a nest of giant Carpenter Bees in my back yard. Although they are black and do not appear to have a stinger. Could this be a youngster or a Queen? Thought you might like to see the pictures. I know you guys are busy! This was just a curiosity not an emergency. Sincerely,
The Valley Carpenter Bee, Xylocopa varipunctata, is sexually dimorphic. The female is the large black bee you mention, and the male is the lovely golden bee in your photo. These bees are found in California, Arizona and Baja California Mexico.